Method for producing 1,1,1-trifluoroethane
AssigneeSolvay SA
InventorVeronique Mathieu
Life of this patent
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Abstract
Process for the manufacture of 1,1,1-trifluoroethane (HFC-143a), according to which 1,1-difluoro-1-chloroethane (HCFC-142b) is subjected to a vapour-phase reaction with hydrogen fluoride (HF) in the presence of a hydrofluorination catalyst, in which process the molar ratio of the HCFC-142b introduced to the HF introduced into the vapour-phase reaction is greater than or equal to 1 and less than 1.3.
Claims16
Process for the manufacture of 1,1,1-trifluoroethane (HFC-143a), according to which 1,1-difluoro-1-chloroethane (HCFC-142b) is subjected to a vapour-phase reaction with hydrogen fluoride (HF) in the presence of a hydrofluorination catalyst, in which process the molar ratio of the HCFC-142b introduced to the HF introduced into the vapour-phase reaction is greater than or equal to 1 and less than 1.3.
Dependencies are inferred from the claim text.